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Opis: Timber construction is gaining popularity worldwide due to its advantages over traditional masonry systems, including energy-efficiency, sustainability, and fast prefabrication. The technology of prefabricated timber buildings has evolved significantly, affecting the indoor environmental quality (IEQ) of such buildings, which are generally perceived as offering high living comfort. While contemporary design practices aim to ensure high performance in new buildings, existing timber structures often fail to meet modern standards. In addition to common issues such as ageing, poor energy-efficiency, and functional inadequacies, problems like seismic vulnerability, fire risk, and the so-called “sick building syndrome” are increasingly relevant. As part of the project Indoor Environmental Quality in Prefabricated Timber Houses: A Historical and Contemporary Perspective, funded through the Public Call Problem-Based Learning for Students in a Work Environment 2024–2027, we investigated IEQ in two houses built by the Slovenian manufacturer Marles hiše Maribor d.o.o. The project was carried out in close collaboration with the company. Using long-term measurements, we assessed and compared thermal comfort and other parameters in an older and a newer prefabricated timber house. The findings offer guidance for both the renovation of existing buildings and the design of new ones, emphasising the importance of aligning energy performance with indoor comfort.
Ključne besede: prefabricated timber houses, Indoor Environmental Quality (IEQ), thermal comfort, existing buildings, sick building syndrome
Objavljeno v DKUM: 27.11.2025; Ogledov: 0; Prenosov: 5
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Opis: The main goal of the paper is to present possible benefits in application of previously developed innovative in-plane load-bearing timber double-skin façade elements (DSF) as additional bracing elements in tall timber buildings. Therefore, a six-storey prefabricated timber structure of a height of 15 m and with a regular floor-plan is analysed by a seismic excitation of ag = 0.225 · g with a strong asymmetrical position of transparent façade elements. Two structural solutions are analysed: a hybrid system combining CLT and Light Timber-Framed walls and a non-hybrid structure made entirely of CLT. In both cases, DSF elements are first considered non-resisting and later as racking-resisting bracing elements. Numerical results show that using racking-resisting DSF elements in a hybrid system (CLT+LTF) achieves a similar increase in overall racking stiffness as a non-hybrid CLT structure with non-resisting DSF. Previous studies highlight hybrid timber systems as the preferred approach due to structural, energy-efficient, and ecological advantages. This finding is significant, offering practical benefits and new design opportunities for modern tall timber buildings with asymmetrical transparent façades, improving both energy efficiency and interior illumination in contemporary prefabricated structures.
Ključne besede: timber, glass, double-skin façades, racking resistance, mathematical modelling, tall timber buildings, seismic design
Objavljeno v DKUM: 18.08.2025; Ogledov: 0; Prenosov: 3
Celotno besedilo (1,66 MB)
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Opis: The use of a double-skin façade (DSF) is a quite new approach in the building renovation process, complementing conventional renovation strategies. A double-skin façade is an envelope wall construction that consists of two transparent surfaces separated by a cavity and can essentially improve the thermal and acoustic resistance of the building envelope. The main double-skin wall components are usually composed of a hardened external single glazing pane and a double or triple thermal insulating internal glass pane, which are connected to the frame structure. Recently, many studies have analysed the thermal and acoustic performance of DSF elements, but almost none in terms of structural behaviour, especially in terms of determining the racking resistance of such wall elements. Moreover, with a view to reduce the global warming potential, an eco-friendly timber frame instead of a commonly used steel, aluminium or plastic frame is studied in this analysis. However, structurally combining timber and glass to develop an appropriate load-bearing structural element is a very complex process involving a combination of two materials with different material properties, where the type of bonding can be selected as a crucial parameter affecting the racking resistance range. Since the costs of experiments performed on such full-scale DSF elements are very high and such experiments are time-consuming, it is crucial to develop special mathematical models for analysing the influence of the most important parameters. Therefore, the main goal of this paper is to develop the finite element mathematical model of the studied DSF structural elements with a highly ecological solution by using a timber frame. In the second step, the developed model is further implemented in the numerical analysis of racking stiffness and followed by a comprehensive parametric numerical study on different parameters influencing the horizontal load-bearing capacity of such DSF timber elements. The obtained results indicate that the new approach of the developed load-bearing prefabricated timber DSF elements can essentially improve racking resistance and stiffness compared with the widely studied timber-glass single-skin wall elements and can thus be fully recommended especially in the structural renovation process of old buildings.
Ključne besede: timber, glass, double-skin façades, racking resistance, mathematical modelling, numerical analysis, Finite Elements Methods (FEM)
Objavljeno v DKUM: 11.03.2025; Ogledov: 0; Prenosov: 7
Celotno besedilo (859,92 KB)
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Opis: Zaradi vedno večjega vpliva urbanizacije in strnjevanja ljudi v mestih pride do velikega problema pomanjkanja stanovanj oz. pomanjkanja prostora za gradnjo. Eden izmed načinov obvladovanja širitve mest so nadvišanja obstoječih stavb, ki je prav tako ena izmed ekonomično in okoljsko najbolj ugodnih rešitev. Naloga obsega analizo obtežb, statično in dinamično analizo, ter dimenzioniranje nadvišanj dveh etaž obstoječe delno-podkletene 3-etažne (K+P+1N+2N+3N) stanovanjske stavbe locirane v Ljubljani, natančneje v Zalogu. Pri obstoječi stavbi gre za masivno betonsko gradnjo. V magistrski nalogi sem se osredotočil na statično in dinamično analizo izvedbe nadvišanj obstoječe stavbe za dve etaži. Pri sistemu nadvišanj sem se odločil za okvirno panelne module, zaradi same teže oz. vitkosti sistema, s katerimi bistveno ne vplivamo na obstoječo konstrukcijo.
Ključne besede: gradbeništvo, leseni modul, dimenzioniranje, stanovanjski blok, okvirno panelni sistem
Objavljeno v DKUM: 02.09.2024; Ogledov: 70; Prenosov: 79
Celotno besedilo (11,08 MB)

Opis: Zbirka vaj "Osnove projektiranja konstrukcij – zbirka vaj" je namenjena dodiplomskim študentom Fakultete za gradbeništvo, prometno inženirstvo ter arhitekturo pri študiju gradbeništva. Prav tako je uporabna za univerzitetne programe gradbeništva, gospodarskega inženirstva ter arhitekture. Celotna zbirka vaj temelji na evropskih standardih in se osredotoča na ključne vidike projektiranja konstrukcij. Publikacija vključuje razlage in rešene primere v skladu s standardi, kot so SIST EN 1990:2004, SIST EN 1991-1-1:2004, SIST-EN 1991-1-3:2004, SIST-EN 1991-1-4:2004 in SIST-EN 1998-1 2005. Te vaje so zasnovane za razumevanje osnovnih konceptov projektiranja konstrukcij, analize obtežb ter potresnega inženirstva, kar je bistveno za razumevanje obnašanja gradbenih konstrukcij. Za dodatna pojasnila in teoretično razlago rešenih primerov se avtorici sklicujeta na učbenik "Osnove projektiranja konstrukcij". Avtorici upata, da bo ta zbirka vaj koristna študentom pri izobraževanju, poglobitvi znanja s področja projektiranja gradbenih konstrukcij in jim bo služila kot vodnik za uspešen študij in prihodnje delo v gradbenem sektorju.
Ključne besede: projektiranje, konstrukcija, analiza obtežb, mejno stanje nosilnosti, mejno stanje uporabnosti
Objavljeno v DKUM: 24.10.2023; Ogledov: 539; Prenosov: 229
Celotno besedilo (5,21 MB)
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